6.8med

CVE-2016-2167

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL auth…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
6.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
6.8%
percentile 94%
Public exploits
0
none known

Summary

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.

Exploit prediction (EPSS)

6.81% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.8CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD2.04.9AV:N/AC:M/Au:S/C:P/I:P/A:N

Classification

Weakness

References

  • lists.fedoraproject.org /pipermail/package-announce/2016-May/184545.html · vendor-advisory, x_refsource_FEDORA, x_transferred
  • securityfocus.com /bid/89417 · vdb-entry, x_refsource_BID, x_transferred
  • mail-archives.apache.org /mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgJet+7_MAhomFVOXPgLtewcUw9w=k9zdPCkq5t · mailing-list, x_refsource_MLIST, x_transferred
  • slackware.com /security/viewer.php?l=slackware-security&y=2016&m=slackware-security.417496 · vendor-advisory, x_refsource_SLACKWARE, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-05/msg00044.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • mail-archives.apache.org /mod_mbox/subversion-announce/201604.mbox/%3CCAP_GPNgfn1iKueW51EpmXzXi_URNfGNofZSgOyW1_jnS · mailing-list, x_refsource_MLIST, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-05/msg00043.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • debian.org /security/2016/dsa-3561 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • securitytracker.com /id/1035706 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • security.gentoo.org /glsa/201610-05 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • oracle.com /security-alerts/cpuoct2020.html · x_refsource_MISC, x_transferred
  • subversion.apache.org /security/CVE-2016-2167-advisory.txt · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.